alright i know a few of my fellow nopistoners have the fd vacum diagram they can email me , the color coded one and or the flow chart one. i used to have them both but my laptop fried so i dont have them anymore.



can someone please email me the flow chart and or the color coded vacum diagram for the third gen please. im pulling my hair out with a 94 with a 12psi to 2 psi issue basicaly runs 12psi primary turbo and once the second turbo is switched it bleeds down to 2psi.



i have checked the vacum chambers , solinoids, replaced a bunch of vacum hoses that where bad and the N390 valve smoked it and the motor is now tight. also at the same time have replaced the stock presure relief valve with a pettit racing valve. now have 13psi bleeding to 5 psi.



i did a vacum test on the switch over chamber and the vacum port on the shaft side bleeds slightly and so does the second turbo solinoid, the one on the left in the pair bolted to the intake manifold. id hate to put that section of pipe in with the switch over port in the car and waist money when i dont think its the issue as there is no sound of exturnal presure releace.



anyone else got any ideas? im more then willing now to take some knocks on this one as its prolly something simple that i am over looking.



randy

email addy is ,,,,,, cosmopowered@homtail.com ,,,,,, thanks in advance

I have it printed out... i'll try to stop by my buddy's shop tomorrow and see if his scanner works ( mine is fried) and email that to you. The URL on all the copies i have are dead now.





OR... just use this one. http://www.turborx7.com/images/Techn...e_diagram2.jpg

thanks man, hey have you ever run into this issue that im having. its driving me nuts. i have not found anything that i can say ya this is the problem and be able to move on with it yet, its all been a bunch of minor things so far from age. this car was done originally down at Pettit racing.